57 lines
1.4 KiB
C++
57 lines
1.4 KiB
C++
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// Licensed under the Apache-2.0 license. See README.md for details.
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#include "FileSystem.h"
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#include <QDir>
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#include <QSaveFile>
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#include <QFileInfo>
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void ensureExists(const QDir &dir)
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{
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if (!QDir().mkpath(dir.absolutePath()))
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{
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throw FS::FileSystemException("Unable to create directory " + dir.dirName() + " (" +
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dir.absolutePath() + ")");
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}
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}
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void FS::write(const QString &filename, const QByteArray &data)
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{
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ensureExists(QFileInfo(filename).dir());
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QSaveFile file(filename);
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if (!file.open(QSaveFile::WriteOnly))
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{
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throw FileSystemException("Couldn't open " + filename + " for writing: " +
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file.errorString());
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}
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if (data.size() != file.write(data))
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{
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throw FileSystemException("Error writing data to " + filename + ": " +
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file.errorString());
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}
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if (!file.commit())
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{
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throw FileSystemException("Error while committing data to " + filename + ": " +
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file.errorString());
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}
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}
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QByteArray FS::read(const QString &filename)
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{
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QFile file(filename);
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if (!file.open(QFile::ReadOnly))
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{
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throw FileSystemException("Unable to open " + filename + " for reading: " +
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file.errorString());
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}
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const qint64 size = file.size();
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QByteArray data(int(size), 0);
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const qint64 ret = file.read(data.data(), size);
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if (ret == -1 || ret != size)
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{
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throw FileSystemException("Error reading data from " + filename + ": " +
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file.errorString());
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}
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return data;
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}
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